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17.8.0.2
Bottom Lock
The Bottom Lock function keeps the screen display locked onto a certain Range around the
bottom. Let's say the bottom is 400FT and the Bottom Lock Range is set to display 30FT
around the bottom, the screen (instead of displaying from 0FT to e.g. 450FT) will display only
a Range of 30FT around the bottom, e.g. from 380FT to 410FT.
17.8.1 Depth
Moves the display from showing the bottom to the depth value entered.
17.8.2 Shift
Shifts the display from the bottom of the transducer to the depth value entered.
Example: Your vessel is in about 57FT of water, however there is fish suspended in 35FT
of water. You want to display to 10FT area around the fish. Shift would be set
to 30FT and Depth would be set to 40FT shown in example below.
17.9
INTERFERENCE REJECTION
Turns On or Off a filter to remove noise from other Fish Finder or Depth Sounders that may
be near by when fishing.
CPF180i and CPF300i
30
35
40
Figure 17.8.2 - Example of Depth and Shift
Figure 17.9 - Interference Rejection menu
Top of display
Shift = 30Ft
Bottom of display
Depth = 40Ft
Page 139
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